Ungültiges Layout der ARFF-Datei

Question

Ich habe eine ARFF-Datei aus Liac-Weka-Paket generiert.

% Finger-tapped_dataset 
    @RELATION Feature_onsets 
    @ATTRIBUTE file STRING 
    @ATTRIBUTE nOnset INTEGER 
    @ATTRIBUTE Duration REAL 
    @ATTRIBUTE RMS.mean REAL 
    @ATTRIBUTE RMS.var REAL 
    @ATTRIBUTE spectralCentroid.mean REAL 
    @ATTRIBUTE spectralCentroid.var REAL 

    @DATA 
    sound_1,1,0.859138309956,0.00811793841422,0.000330115522956,0.0686389952898,8.52151861181e-05 
    sound_1,2,0.719818592072,0.0209680441767,0.00351395853795,0.0674178153276,0.000161568881595 
    sound_1,3,0.661768734455,0.021980991587,0.00362967769615,0.0664032921195,0.000200695401873 
    sound_1,4,0.441179126501,0.0213470663875,0.0032624185551,0.0699469298124,0.00039628680679 
    sound_1,5,0.9287981987,0.0224026963115,0.00370181445032,0.0690619647503,0.000339957477991 
    sound_1,6,0.917188227177,0.0215289667249,0.00351273571141,0.0691223442554,0.000326170702465 
    sound_1,7,0.441179126501,0.0240413267165,0.00402954593301,0.0688840150833,0.000323307351209 
    sound_1,8,0.243809521198,0.0253500081599,0.00412592897192,0.0682555362582,0.000328328402247 
    sound_1,9,0.673378705978,0.0244132820517,0.00386085407808,0.0677450224757,0.000302833941532 
    sound_1,10,0.487619042397,0.025617858395,0.004043656867,0.06802662462,0.000307480600895 
    sound_1,11,1.61451244354,0.0236539077014,0.00386097631417,0.0858256071806,0.00764736300334 
    % 
    % 
    % 

Beim Versuch, es zu lesen:

import arff 
arff.loads('result.arff') 

bekomme ich folgende Fehlermeldung:

arff.BadLayout: Invalid layout of the ARFF file, at line 1

Ich bin nicht in der Lage, die prblem zu finden. Weka öffnet die Datei aber nicht mit dem Python-Paket ... Irgendwelche Ideen? Danke im Voraus!

Answer 1

Betrachtet man die Dokumentation des ARFF-Moduls unter https://pythonhosted.org/liac-arff/, nimmt load() ein Dateiobjekt als Eingabe. Es sieht aus wie Sie die oben genannten Daten in result.arff-Datei haben, so sollten Sie es als laden:

fp = open('result.arff') 
testdata = arff.load(fp) 

Dies sollte den obigen Fehler auf den arff.BadLayout Zusammenhang lösen.

Answer 2

loads takes a string containing the whole document, kein Dateiname:

Convert a string instance containing the ARFF document into a Python object.

Entweder load mit einem Dateiobjekt verwenden oder die Datei in einen String lesen und es auf diese Weise passieren.